Article
Polymer Science
Muammer Burc, Serap Titretir Duran, Oznur Gungor, Ali Ersin Karagozler
Summary: An effective electrochemical method based on modified glassy carbon electrode was developed for the determination of gentamicin. The prepared gentamicin selective electrode showed high linearity and low detection and quantitation limits, making it suitable for various pharmacological, medical and biochemical applications.
Article
Chemistry, Multidisciplinary
Zelalem Bitew, Adane Kassa, Beyene Misgan
Summary: A sensitive and selective voltammetric method using poly(diphenylamine-4-sulfonic acid) modified glassy carbon electrode was developed for determination of gallic acid. The method showed low detection limit and high recovery rate in honey and peanut samples.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Molla Tefera, Merid Tessema, Shimelis Admassie, Walelign Wubet
Summary: An electrochemical sensor based on MWCNTs/poly (AHNSA)/GCE was developed for determining UA with linear response and low detection limit. The sensor successfully quantified UA in urine samples.
Article
Polymer Science
Imren Taskin, Oznur Gungor, Serap Titretir Duran
Summary: In this study, a poly(3-methylthiophene) modified electrode was developed for the detection of florfenicol. Through investigating the sensor property of the modified electrode, it was found that the selectivity, sensitivity, and response stability of the modified electrode were significantly improved. The developed sensor showed high reproducibility, stability, sensitivity, and selectivity for florfenicol detection in red and chicken meat samples.
Article
Chemistry, Multidisciplinary
Adane Kassa, Meareg Amare
Summary: The study presented a selective and precise voltammetric method for determination of amoxicillin in tablet formulations using a polymer-modified electrode. The method showed excellent performance and potential applicability for determination of amoxicillin in real samples, including serum samples.
Article
Chemistry, Analytical
Manna Rachel Mathew, Sanu K. Anand, Krishnapillai Girish Kumar
Summary: A voltammetric sensor was developed for the determination of xanthine (XA) and hypoxanthine (HX) using a polymerised layer of para toluene sulphonic acid and gold nanoparticles composite modified glassy carbon electrode. The simultaneous determination of XA and HX was achieved within specific linear ranges using square wave voltammetry. The sensor showed successful application in determining the spiked amount of XA and HX in synthetic urine and serum samples.
ANALYTICAL SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Oznur Gungor, Muammer Burc, Chedia Ben Ali Hassine, Suleyman Koytepe, Serap Titretir Duran
Summary: An effective voltammetric sensor was developed for the determination of penicillin G by electro-polymerization. The modified electrode showed significantly increased selectivity and sensitivity compared to the bare electrode. The developed sensor can be applied for penicillin detection in food and biological samples.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
V. S. Haritha, Athira Vijayan, S. R. Sarath Kumar, R. B. Rakhi
Summary: The facile synthesis of MoS2 microspheres and the construction of MoS2/glassy carbon electrodes for precise detection of hydrogen peroxide were reported. The MoS2-modified GCE displayed superior electrocatalytic reduction of H2O2 due to its high surface area and good electrical conductivity. The MoS2/GCE sensor exhibited high sensitivity, linearity in detection, and low detection and quantification limits.
Article
Chemistry, Analytical
Muammer Burc, Serap Titretir Duran, Oznur Gungor, Suleyman Koytepe
Summary: A sensitive, fast and low-cost voltammetric sensor has been developed for the determination of gentamicin in biomedical applications. The modified glassy carbon electrode was used for the determination of gentamicin in synthetic urine samples.
Article
Chemistry, Analytical
Vahid Riahifar, Nahid Haghnazari, Fatemeh Keshavarzi, Elahe Ahmadi
Summary: This study introduced a sensitive sensor for detecting MET based on a modified glassy carbon electrode using Fe3O4@PPy core-shell and ErGO. The sensor was characterized using FE-SEM and EIS, showing better analytical performance compared to other modified electrodes for MET detection. The sensor exhibited a wide linear range and low detection limit, with good reproducibility, sensitivity, and long-term performance, making it a promising candidate for MET determination in urine and serum samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Ameha Debalkie, Atnafu Guadie, Adane Kassa, Molla Tefera
Summary: In this study, poly(8-aminonaphthalene-2-sulfonic acid) was used to modify a glassy carbon electrode for the detection of norfloxacin. The modified electrode showed improved surface area and decreased charge-transfer resistance. The method demonstrated good linearity, low detection limit, and minimal interference in tablet formulations and urine samples.
Article
Electrochemistry
Sanu K. Anand, Manna Rachel Mathew, K. Girish Kumar
Summary: This study presents a voltammetric sensor for the determination of biogenic amines serotonin and tyramine, using an L-cysteine grafted glassy carbon electrode. The sensor shows excellent performance in terms of peak separation and detection limits for the simultaneous determination of these compounds in synthetic blood serum samples.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Paper & Wood
Songlin Wang, Qian Wang, Yao Kai
Summary: Cellulose nanocrystals (CNCs) were successfully isolated from microcrystalline cellulose (MCC) and further processed to obtain CNC II and CNC III. These nanocrystals showed high crystallinity and good thermal stability, with degradation temperatures of 300°C, 275°C, and 242°C for CNC I, CNC II, and CNC III, respectively. Additionally, they exhibited a large aspect ratio and high negative zeta potential.
Article
Chemistry, Analytical
Ademar Wong, Anderson M. Santos, Camila A. Proenca, Thaisa A. Baldo, Maria H. A. Feitosa, Fernando C. Moraes, Maria D. P. T. Sotomayor
Summary: This work presents a simple, rapid and low-cost method for the determination of 3-methylmorphine at nanomolar levels in clinical and environmental samples. The method utilizes a modified glassy carbon electrode and square-wave voltammetry with a specific buffer solution. The method demonstrates high sensitivity, wide linear range, and good selectivity for the detection of 3-methylmorphine.
Article
Materials Science, Paper & Wood
Songlin Wang, Zongjia Song, Hui He, Qian Wang
Summary: Poplar wood sawdust was chemically modified and separated into fractions using a mixture of p-toluene sulfonic acid and formic acid under different conditions. During the process, the rapid and nearly-complete dissolution of wood lignin was achieved by enhancing the cleavage of interunitary bonds. The optimized conditions led to the removal of over 80% of lignin while retaining almost all of the cellulose in the solid residue.
Article
Chemistry, Analytical
Gang Qu, Yuxin Zhao, Qiaoli Zhang, Jina Wu, Xiaosen Li, Yang Yang, Shilei Liu
Summary: In this study, magnetic mesoporous materials combined with real-time in situ mass spectrometry were used for the high-throughput detection of hydrolyzed products of organophosphorus nerve agents. The method showed good linearity, low limits of detection and quantification, and high extraction recoveries. The magnetic preparation method used was quick, cost-effective, rugged, and safe. The results demonstrated the potential of this method for rapid and efficient determination of the target analytes in environmental samples.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Anna Hildebrand, Mariam Merchant, Danny O'Hare
Summary: Substandard and falsified artemisinin derivatives in antimalarials have caused significant deaths and economic losses. This study evaluates the feasibility of voltammetric methods for identifying and quantifying artemether. The findings suggest that electrochemical analysis shows promise as a method for artemether identification and quantification.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Marx Osorio Araujo Pereira, Alvaro Ferreira Junior, Edson Silvio Batista Rodrigues, Helena Mulser, Giovanna Nascimento de Mello e Silva, Wallans Torres Pio dos Santos, Eric de Souza Gil
Summary: Brazilian spotted fever (BSF) is a serious and rapidly evolving disease. A new impedimetric immunosensor was developed for rapid diagnosis by measuring specific antibodies in plasma. The sensor demonstrated selectivity and accuracy, and has potential for important applications in diagnostic testing.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Kathrin Schilling, Ronald A. Glabonjat, Olgica Balac, Marta Galvez-Fernandez, Arce Domingo-Relloso, Vesna Slavkovich, Jeff Goldsmith, Miranda R. Jones, Tiffany R. Sanchez, Ana Navas-Acien
Summary: Analysis of trace elements in urine is an important tool for assessing exposures, diagnosing nutritional status, and guiding public health and healthcare intervention. This study provides a sensitive method for analyzing 18 elements in urine samples, using only 100 μL. The results show good accuracy and sensitivity of the method.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Mengya Li, Shijie Liu, Shiliang Guo, Dong Liang, Miaoyun Li, Yaodi Zhu, Lijun Zhao, Jong-Hoon Lee, Gaiming Zhao, Yangyang Ma, Yanxia Liu
Summary: In this study, a magnetic flow device was developed to purify spores in a culture medium system. The device used magnetic nanoparticles to absorb vegetative cells, separating them from the spores. The achieved purity of the collected spores was over 95%. The study also demonstrated a rapid quantitative detection method using Raman spectroscopy.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Wanqiong Liu, Zixuan Wu, Jianwei Peng, Zebin Xu, Yong Liang
Summary: Metal-organic frameworks (MOFs) are effective carriers for molecular imprinting, but their poor dispersibility in aqueous solution is a significant drawback. In this study, we have applied amphiphilic block copolymers and molecularly imprinted technology on MOFs to improve the hydrophilicity of molecularly imprinted fluorescent materials.
ANALYTICAL METHODS
(2024)
